Next,
you will need a soldering iron with a fine tip (less than
1mm recommended) and some soldering lead. If you don’t
have good soldering skills you should let a friend of yours
that has good soldering skills do
the soldering,
or even better a firm specialized at this, for example a TV
repair shop do this…

Now
that you have the wire connected the tough
part is over. You shall now need
to
solder the red wire to the middle (leg 2) on the pot, and
then a wire from any of the other legs (I used leg 1) to
ground in your PC, the screw connecting your card will do,
however I went for a more professional look and attached it
to a solder pad on the card itself…

Now
if you connected the pot as I said, “sense” to leg two
on pot and leg 1 to ground screwing the screw clockwise will
increase the resistance, this must be done before because
when the pot has been attached you will not be able to
measure the resistance anymore…

This
is extremely important! Make sure that you set the pot for
5k ohm, i.e. maximum resistance otherwise you will fry your
card when you start your PC! Also be sure to connect the
pins you measure to the card and not the other one,
otherwise you will get zero resistance and you will fry the
card, a good way to prevent this is to cut off the leg you
will not be using.

Note:
if you measured your base resistance as I described above
that is what you should set the pot for instead, for my
card that would be 2080ohm for v-gpu and 2480ohm for
v-mem.

I
connected my pots to a small circuit board; by joining the
ground legs on the pots I can then use the same ground wire
(I would need two otherwise.) See the pic below

Next
do the exact same thing for the memory, but when you measure
v-mem put the multimeter on the leg of
the capacitor between the memory chips, also pictured below.

The
final product is shown below; the v-gpu mod gives me an
increase to 340 MHz at 1,78v. I have not gone higher since
I’m just air-cooling right now but with water I expect to
reach 350 - 360 MHz without much trouble.

My
memory was another story however, it doesn’t seem to need
more voltage than 1,6v (more current just gives more
artefacts) I can reach 634,5mhz artefact free and 650 MHz if
I also put a fan blowing cool air over the memory heatsinks.
This is the worst memory OC I’ve seen yet, and after doing
some research I’ve found out that the Gainward cards are
not too friendly for extreme memory overclocking speeds, the
Abit Geforce4 Ti 4200 64mb seems to be much better judging
by others’ results, with most of them reaching above
700mhz speeds. Although take note that every individual card
will be different and that it’s really just “luck of the
draw” if you get a card that is more OC friendly or not.